S u p e r B l u e

Owner’sManualPB444XPB446XPB448XPB449X

introduction

table of contents

specif icat ions

4 ch amplifierPB448X

15-30 Khz( 3dB)+_

10-30 Khz( 3dB)+_

10-30 Khz( 3dB)+_

2 ch amplifierPB449X

10-30 Khz( 3dB)+_

1000W x 1

250 mV (low)2.5 V (high)

20 K-Ohms (low)100 Ohms (high)

DC 14.4Vnegative ground(10.5-16V)

30 A

2-8 Ohms

500W x 2

yes

no

125W x 2

15.31x2.32x10.63

389x59x270

3.85

8.47

1

2 ch amp PB444X • PB446X• PB449X • 4 ch amp PB448X

2 ch amplifierPB444X

2 ch amplifierPB446X

output power@14.4 V.D.C 1 Khz

bridged mode 600W x 1 500W x 2

frequency response

input sensitivity 150 mV 250 mV (low)2.5 V (high)

250 mV (low)2.5 V (high)

input impedance 10 K-Ohms 10 K-Ohms (low)100 Ohms (high)

20 K-Ohms (low)100 Ohms (high)

power supply voltage DC 14.4Vnegative ground(10.5-16V)

DC 14.4Vnegative ground(10.5-16V)

DC 14.4Vnegative ground(10.5-16V)

dimensions (W x H x D)

maximum current draw 15 A 20 A 30 A

matching speaker impedance 4-8 Ohms 2-8 Ohms 2-8 Ohms

bass/treble control

Maximum Power Output 200W x 2 300W x 2 250W x 4

yes noyes

400W x 1

subwoofer crossover no yesno

RMS Power Output @ 4 ohms 60W x 2 70W x 2 65W x 4

mm

inches

230x59x270

9.05x2.32x10.63 12.09x2.32x10.63

307x59x270

15.31x2.32x10.63

389x59x270

2.25

4.95

2.95

6.49

3.85

8.47

net weight

kg

lbs

features and controls2 ch amp PB444X

treble control

bass control

input gain control

low level inputs

protection indicator

power fuse

power terminals

speaker connections

power LED

features and controls

input gain control use this control to match the outputs ofyour head unit to the amplifier. Startingwith your head unit volume control set atabout the 2 o’clock position, increase theamp gain control until distortion begins tooccur, and reduce slightly from this point.

low level inputs this amp features gold-plated RCA inputjacks for high impedance input. Use thesewith car stereo output which uses RCA-typeconnector cables.

speaker connections these terminals are 14K gold plated toguarantee high conductivity and minimumsignal loss.

treble control use this control to adjust the treble output levelto suit your taste or audio program material.

power fuse the fuse protects the amplifier and your car’selectrical system from short circuit conditions.

power terminals use these connectors to deliver power, ground,and remote turn-on control to the amplifier.

power LED this indicator is illuminated when poweris applied.

bass control use this control to adjust the bass output levelto suit your taste or audio program material.

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protectionindicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.

features and controls2 ch amp PB446X • PB449X

power LED

treble control

input gain control

low level inputs

high level inputs

bass control

speaker connections

power terminals

protection indicator

bridged mode switch

power fuse

features and controls

input gain control use this control to match the outputs ofyour head unit to the amplifier. Startingwith your head unit volume control set atabout the 2 o’clock position, increase theamp gain control until distortion begins tooccur, and reduce slightly from this point.

high level inputs if your car stereo does not have RCA outputjacks, you can connect the speaker outputfrom the stereo system to the amplifier.

speaker connections these terminals are 14K gold plated toguarantee high conductivity and minimumsignal loss.

treble control use the control to adjust the treble output levelto suit your taste or audio program material.

power fuse the fuse protects the amplifier and your car’selectrical system from short circuit conditions.

power terminals use these connectors to deliver power, ground,and remote turn-on control to the amplifier.

power LED this indicator is illuminated when poweris applied.

bass control use the control to adjust the bass output levelto suit your taste or audio program material.

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protectionindicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.

low level inputs this amp features gold-plated RCA inputjacks for high impedance input. Use thesewith car stereo output which uses RCA-typeconnector cables.

bridged mode switch the amplifier can be bridged to form ahigh-power one channel unit. Make surethat the speaker system on the bridgedchannel is capable of handling the ratedpower and is of the proper impedance.

features and controls4 ch amp PB448X

power LED

front input gain control

low level inputs

high level inputs

speaker connections

power terminals

protection indicator

power fuse

rear input gain control

front bridged mode switch

rear bridged mode switch

subwoofer crossover on/off switch

subwoofer crossover frequency control

features and controls

input gain controls use these controls to match the outputs ofyour head unit to each pair of amplifierinputs. Starting with your head unit volumecontrol set at about the 2 o’clock position,increase the amp gain controls untildistortion begins to occur, and reduce slightlyfrom this point.

high level inputs if your car stereo does not have RCA outputjacks, you can connect the speaker outputfrom the stereo system to the amplifier.

speaker connections these terminals are 14K gold plated toguarantee high conductivity and minimumsignal loss.

subwoofer crossoveron/off switch

this flexible amplifier can be set up withleft/right (or bridged) rear subwoofersystem(s). This switch activate the rearsubwoofer crossover.

power fuse the fuse protects the amplifier and your car’selectrical system from short circuit conditions.

power terminals use these connectors to deliver power, ground,and remote turn-on control to the amplifier.

power LED this indicator is illuminated when poweris applied.

subwoofer crossoverfrequency control

when activated, this control sets the upperfrequency limit for signals sent to the rearchannel(s).

protection indicator if the amplifier is incorrectly wired or notmatched to the speaker system, the protectionindicator will come on and the amplifier willturn off. Disconnect the power wire to reset theamplifier.

low level inputs this amp features gold-plated RCA inputjacks for high impedance input. Use thesewith car stereo output which uses RCA-typeconnector cables.

bridged mode switch the amplifier can be bridged to form ahigh-power two channels unit. Make surethat the speaker system on the bridgedchannel is capable of handling the ratedpower and is of the proper impedance.

mounting and installation2 ch amp PB444X • PB446X • PB449X • 4 ch amp PB448X

Please read the Installation Precautions section below before installingyour Pyramid Super Blue amplifier, and then refer to the diagramsprovided to connect power, audio input and speaker connectionsaccording to your own system configuration requirements.

Installation Precautions• Before you drill or cut any holes, investigate your car’s layoutvery carefully. Take care when you work near the gas tank,fuel lines, hydraulic line and electrical wiring.

• Do not operate the amplifier when it is unmounted. Attachall audio system components securely within the automobileto prevent damage, especially in an accident.

• Do not mount this amplifier so that the wire connections areunprotected or in a pinched condition, or likely to be damagedby nearby objects. Be sure to select a location inside yourvehicle which has adequate ventilation.

• Before making or breaking power connections in your system,disconnect the vehicle battery. Confirm that your head unit orother equipment is turned off while connecting the input jacksand speaker terminals.

• If you need to replace the power fuse, only replace it witha fuse identical to that supplied with the system. Using a fuseof a different type or rating may result in damage to yoursystem which isn’t covered by the manufacturer’s warranty.

solid mountingsurface

screwspring washerflat washer

electrical connections2 ch amp PB444X• PB446X• PB449X

mounting and installation

PB444X

PB446X • PB449X

to remoteturn-on+12V

head unit

head unit

12V battery

12V battery

t

ed

,rs

e

to remoteturn-on+12V

ut connections

electrical connections4 ch amp PB448X

to remoteturn-on+12V

head unit

12V battery

PB448X

monoinput connections2 ch amp PB444X

stereo input connections2 ch amp PB444X

electrical connections

head unit

Y adaptors

To a secondamplifier

L/R audio outputs

head unit

ut connectionsstereo input connections2 ch amp PB446X • PB449X

using low level inputs

using high level inputs

L/R audio outputs

head unit

R LR L

from speaker terminals

wiring harness

head unit

PLEASE NOTE! If usinghigh level inputs, do notuse the low level RCAinputs at the same time!

monoinput connections2 ch amp PB446X •PB449X

stereo input connections

using low level inputs

using high level inputs

head unit

Y adaptors

to a secondamplifier

head unit

from speaker terminals

wiring harnessto a second

amplifier

wiringharness

PLEASE NOTE! If usinghigh level inputs, do notuse the low level RCAinputs at the same time!

L RL R

2/4 channel input connections4 ch amp PB448X

4 CHinput connectionsusing low level inputs

2 CHinput connectionsusing low level inputs

L/R rearaudio outputs

head unit

PLEASE NOTE! If usinghigh level inputs, do notuse the low level RCAinputs at the same time!

left output

L/R frontaudio outputs

head unit

Y adaptorsright output

hi level input connections4 ch amp PB448X

head unit

4 CHfloating ground connection

4 CHharness wiringfor common ground connection

LR L R

wiring harness

R L

FRONTREAR

R Lorangeblackblackorange

orangeblackblackorange

FRONTREAR

orangeblackblackorange

orangeblackblackorange

head unit

mono input connections4 ch amp PB448X

4 CH mono input connectionsusing low level inputs

2 CHmono input connectionsusing low level inputs

front outputshead unit

PLEASE NOTE! If usinghigh level inputs, do notuse the low level RCAinputs at the same time!

right audiooutputs

rear outputs

head unit

L RR L

left audiooutputs

hi level mono input connections4 ch amp PB448X

mono input connections

4 CHfloating ground connection

4 CHharness wiringfor common ground connection

L R

wiring harness

L Rorangeblackblackorange

orangeblackblackorange

fromspeaker

terminals

fromspeaker terminals

orangeblackblackorange

orangeblackblackorange

head unit

head unit

speaker connections2 ch amp PB444X

stereo output mode

bridged mono output mode

LEFT speaker

speaker

RIGHT speaker

MINIMUMSPEAKER

IMPEDANCE4 OHMS!

speaker connections2 ch amp PB446X • PB449X

speaker connections

LEFT speaker RIGHT speaker

speaker

stereo output mode

bridged mono output mode

MINIMUMSPEAKER

IMPEDANCE4 OHMS!

mode switch inSTEREO position

mode switch inBRIDGED position

speaker connections4 ch amp PB448X

FRONTspeakers

REARspeakers

L R

R L

4 channel (stereo) output mode

bridged mono output mode

speakersL R

mode switch inSTEREO position

mode switch inBRIDGED position

MINIMUMSPEAKER

IMPEDANCE4 OHMS!

A

A

speaker connections troubleshooting2 ch amp PB444X • PB446X • PB449X • 4 ch amp PB442X• PB448X

Amplifier will not power up.• Check for good ground connection.• Check that remote DC terminal has at least +12v DC.• Check that there is battery power on the + terminal.• Check all fuses.• Check that Protection LED is not lit. If it is lit, shut off

amplifier briefly and then repower it.

High hiss or engine noise (alternator whine) in speakers.• Disconnect all RCA inputs to the amplifier(s) – if hiss/noisedisappears, then plug in the component driving the amplifierand unplug its inputs. If hiss/noise disappears, go on untilthe faulty/noisy component is found.

• It is best to set the amplifier's input level as insensitiveas possible. The best subjective S/N ratio is obtainablethis way. Try to drive as high a signal level from the headunit as possible.

Protection LED comes on when the amplifier is powered up.• Check for shorts on speaker leads.• Check that the volume control on the head unit is turned

down low.• Remove speaker leads, and reset the amplifier. If the

Protection LED still comes on, then the amplifier is faulty.

Amplifier(s) gets very hot.• Check that the minimum speaker impedance for that model

is correct.• Check for speaker shorts.• Check that there is good airflow around the amplifier. In

some applications, an external cooling fan may be required.

Distorted sound• Check that the Level control(s) is set to match the signal

level of the head unit.• Check that all crossover frequencies have been properly set.• Check for shorts on the speaker leads.

High squeal noise from speakers.• This is almost always caused by a poorly-grounded RCA

patch cord.

Before removing your amplifier, refer to the list below and follow thesuggested procedures. Always test the speakers and their wires first.

PYRAMID AMPLIFIERS CAR AMPLIFIERS